Volume 90, Number 3, May 2010
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||28 May 2010|
Feshbach blockade: Single-photon nonlinear optics using resonantly enhanced cavity polariton scattering from biexciton states
INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento - 38123 Povo, Italy, EU
2 Institute for Quantum Electronics, ETH Zürich - Wolfgang-Pauli-Strasse 16, 8093 Zürich, Switzerland
Corresponding author: firstname.lastname@example.org
Accepted: 19 April 2010
We theoretically demonstrate how the resonant coupling between a pair of cavity polaritons and a biexciton state can lead to a large single-photon Kerr nonlinearity in a semiconductor solid-state system. A fully analytical model of the scattering process between a pair of cavity polaritons is developed, which explicitly includes the biexcitonic intermediate state. A dramatic enhancement of the polariton-polariton interactions is predicted in the vicinity of the biexciton Feshbach resonance. Application to the generation of non-classical light from polariton dots is discussed.
PACS: 71.36.+c – Polaritons (including photon-photon and photon-magnon interactions) / 42.50.Pq – Cavity quantum electrodynamics; micromasers / 03.65.Nk – Scattering theory
© EPLA, 2010
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